html,
body {
    overflow-x: clip;
    width: 100%;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

img {
    -webkit-user-drag: none;
    user-select: none;
}

body {
    font-family: 'Zen Old Mincho', serif;
    color: #ffffff;
}

.fade-in {
    opacity: 0;
    transition: opacity 2.5s cubic-bezier(0.25, 1, 0.5, 1);
    will-change: opacity;
}

.fade-in.is-visible {
    opacity: 1;
}

.fade-in-up {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 2.0s cubic-bezier(0.25, 1, 0.5, 1), transform 2.0s cubic-bezier(0.25, 1, 0.5, 1);
    will-change: opacity, transform;
}

.fade-in-up.is-visible {
    opacity: 1;
    transform: translateY(0);
}

.arrow,
.arrow-blue {
    display: inline-block;
    font-family: sans-serif;
    font-weight: 300;
    transition: transform 0.3s ease, color 0.3s ease;
}

.reasons-title,
.search-title,
.seller-title,
.knowledge-title,
.ac-contact-title {
    font-family: 'Zen Old Mincho', serif;
    font-size: 1.8rem;
    font-weight: 400;
    letter-spacing: 0.25em;
    display: inline-block;
    position: relative;
    border-bottom: none;
}

.reasons-title,
.search-title,
.seller-title,
.knowledge-title {
    padding-bottom: 28px;

    margin-bottom: 28px;

}

.reasons-title::after,
.search-title::after,
.seller-title::after,
.knowledge-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);

    width: 120px;

    height: 1.5px;

}

.reasons-title,
.seller-title {
    color: #333333;
}

.reasons-title::after,
.seller-title::after {
    background-color: #333333;
}

.search-title,
.knowledge-title {
    color: #ffffff;
}

.search-title::after,
.knowledge-title::after {
    background-color: rgba(255, 255, 255, 0.7);

}

.ac-contact-title {
    color: #333333;
    padding-bottom: 18px;

    margin-bottom: 22px;

}

.ac-contact-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;

    height: 1px;

    background-color: #333333;
}

@media (max-width: 768px) {

    .sub-mv-caption h1 {
        font-size: 1.5rem;
        line-height: 1.4;
        letter-spacing: 0.2em;
    }

    .reasons-title,
    .search-title,
    .seller-title,
    .knowledge-title,
    .ac-contact-title {
        font-size: 1.25rem;

    }

    .reasons-title,
    .search-title,
    .seller-title,
    .knowledge-title {
        padding-bottom: 24px;

        margin-bottom: 28px;

    }

    .ac-contact-title {
        padding-bottom: 24px;

        margin-bottom: 28px;

    }

    .reasons-title::after,
    .seller-title::after {
        height: 1px;
    }

    .reason-pc-break {
        display: none;
    }
}

.site-header {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 10;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px 60px;
    background: rgba(0, 0, 0, 0.28);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: none;
}

.sub-mv {
    position: relative;
}

.sub-mv-bg {
    position: relative;
    z-index: 0;
}

.sub-mv::after {
    content: '';
    position: absolute;
    inset: 0;
    z-index: 1;
    background: linear-gradient(90deg, rgba(11, 20, 32, 0.62), rgba(11, 20, 32, 0.08) 70%);
    pointer-events: none;
}

.sub-mv-caption {
    position: absolute;
    left: max(40px, calc((100vw - 1200px) / 2 + 40px));
    bottom: 64px;
    z-index: 2;
    color: #ffffff;
}

.sub-mv-kicker {
    margin-bottom: 5px;
    font-family: sans-serif;
    font-size: 0.68rem;
    font-weight: 700;
    letter-spacing: 0.28em;
    line-height: 1.4;
}

.sub-mv-caption h1 {
    font-family: 'Zen Old Mincho', serif;
    font-size: clamp(2rem, 4vw, 3.1rem);
    font-weight: 400;
    letter-spacing: 0.2em;
    line-height: 1.4;
}

@media (max-width: 900px) {
    .sub-mv-caption {
        left: 32px;
        bottom: 32px;
    }
}

@media (max-width: 600px) {
    .sub-mv-caption {
        left: 24px;
        bottom: 24px;
    }

    .sub-mv-caption h1 {
        font-size: 1.5rem;
    }
}

.pc-nav ul {
    display: flex;
    list-style: none;
    gap: 52px;
}

.pc-nav a {
    color: #ffffff;
    text-decoration: none;
    font-size: 0.95rem;
    letter-spacing: 0.1em;
    transition: opacity 0.3s ease;
}

.pc-nav a:hover {
    opacity: 0.75;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 20px;
}

.header-contact {
    display: none;
}

.header-icon a {
    color: #ffffff;
    font-size: 1.3rem;
    display: flex;
    align-items: center;
    text-decoration: none;
    transition: opacity 0.3s ease;
}

.header-icon a:hover {
    opacity: 0.75;
}

.hamburger-btn,
.sp-nav {
    display: none;
}

.main-visual {
    position: relative;
    width: 100%;
    height: 100vh;
    min-height: 650px;
    background: linear-gradient(to bottom, rgba(0, 0, 0, 0) 58%, rgba(0, 0, 0, 0.34) 100%),
        url('images/main.jpg') no-repeat center center / cover;
    display: flex;
    align-items: flex-end;
    padding: 0 60px 80px 60px;
}

.mv-container {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
}

.mv-title {
    font-size: 3.2rem;
    font-weight: 500;
    letter-spacing: 0.15em;
    margin-bottom: 24px;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.15);
    transform: translateX(-2px);
}

.mv-sub {
    font-size: 1.05rem;
    line-height: 1.9;
    letter-spacing: 0.1em;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.15);
}

.btn-contact {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    background-color: rgba(255, 255, 255, 0.85);
    color: #333333;
    border: 1px solid transparent;
    text-decoration: none;
    padding: 16px 56px;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 500;
    letter-spacing: 0.08em;
    transition: all 0.3s ease;
    backdrop-filter: blur(4px);
}

.btn-contact:hover {
    background-color: #2b4c6f;
    border-color: #2b4c6f;
    color: #ffffff;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.btn-contact:hover .arrow,
.btn-contact:hover .arrow-blue {
    transform: translateX(6px);
    color: #ffffff;
}

@media (max-width: 768px) {

    .pc-nav {
        display: none;
    }

    .site-header {
        position: fixed;
        top: 0;
        left: 0;
        padding: calc(16px + env(safe-area-inset-top)) 20px 16px;
        justify-content: flex-end;
        z-index: 110;
    }

    .header-right {
        gap: 22px;
    }

    .header-contact {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        min-height: 30px;
        padding: 6px 10px;
        border: 1px solid rgba(255, 255, 255, 0.7);
        border-radius: 2px;
        color: #ffffff;
        text-decoration: none;
        font-size: 0.68rem;
        letter-spacing: 0.08em;
        line-height: 1;
        white-space: nowrap;
        transition: background-color 0.3s ease, border-color 0.3s ease, color 0.3s ease, transform 0.3s ease;
    }

    .header-contact:active,
    .header-contact.is-touch-pressed {
        background-color: #2b4c6f;
        border-color: #2b4c6f;
        color: #ffffff;
        transform: translateY(-1px);
    }

    .header-icon {
        transform: translateY(1px);
    }

    .hamburger-btn {
        position: relative;
        z-index: 100;
        display: flex;
        flex-direction: column;
        justify-content: space-between;
        width: 26px;
        height: 20px;
        background: transparent;
        border: none;
        cursor: pointer;
        padding: 0;
    }

    .hamburger-btn span {
        width: 100%;
        height: 2px;
        background-color: #ffffff;
        transition: all 0.3s ease;
    }

    .hamburger-btn.is-open span:nth-child(1) {
        transform: translateY(9px) rotate(45deg);
    }

    .hamburger-btn.is-open span:nth-child(2) {
        opacity: 0;
    }

    .hamburger-btn.is-open span:nth-child(3) {
        transform: translateY(-9px) rotate(-45deg);
    }

    .sp-nav {
        display: block;
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100vh;
        background: rgba(11, 20, 32, 0.96);
        backdrop-filter: blur(16px);
        -webkit-backdrop-filter: blur(16px);
        opacity: 0;
        visibility: hidden;
        transition: opacity 0.4s ease, visibility 0.4s ease;
        z-index: 90;
    }

    .sp-nav.is-open {
        opacity: 1;
        visibility: visible;
    }

    .sp-nav-inner {
        height: 100%;
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        padding: 60px 24px;
        box-sizing: border-box;
    }

    .sp-nav-list {
        list-style: none;
        text-align: center;
        margin-bottom: 40px;
        width: 100%;
    }

    .sp-nav-list li {
        margin-bottom: 24px;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        padding-bottom: 16px;
    }

    .sp-nav-list li:last-child {
        border-bottom: none;
        margin-bottom: 0;
    }

    .sp-nav-list a {
        color: #ffffff;
        text-decoration: none;
        font-size: 1.05rem;
        letter-spacing: 0.12em;
        font-family: 'Zen Old Mincho', serif;
        transition: opacity 0.3s ease;
    }

    .main-visual {
        height: 100vh;
        height: 100svh;
        min-height: 0;
        padding: 0 24px calc(34px + env(safe-area-inset-bottom));
        background-position: 72% center;
        overflow: hidden;
    }

    .mv-container {
        flex-direction: column;
        align-items: flex-start;
        gap: 24px;
    }

    .mv-title {
        font-size: clamp(1.8rem, 8vw, 2.1rem);
        letter-spacing: 0.12rem;
        white-space: nowrap;
        margin-bottom: 12px;
    }

    .mv-sub {
        font-size: 0.86rem;
        line-height: 1.75;
        letter-spacing: 0.06em;
    }

    .main-visual .btn-contact {
        width: 100%;
        padding: 14px 42px;
        min-height: 50px;
    }
}

.concept-section {
    padding: 120px 0;
    background-color: #ffffff;
    color: #333333;
}

.concept-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.concept-left {
    position: relative;
    width: 25%;
    min-height: 500px;
    display: flex;
    justify-content: flex-start;
}

.concept-catch {
    -webkit-writing-mode: vertical-rl;
    writing-mode: vertical-rl;
    font-size: 2rem;
    font-weight: 400;
    letter-spacing: 0.25em;
    line-height: 2.2;
    position: relative;
    z-index: 2;

    transform: none !important;
    -webkit-transform: translateZ(0);
    will-change: opacity;
}

.concept-catch span {
    display: inline-block;
}

.concept-baby-img {
    position: absolute;
    bottom: 0;
    right: -10%;
    width: 90%;
    max-width: 260px;
    z-index: 1;
}

.concept-baby-img img {
    width: 100%;
    height: auto;
    display: block;
}

.concept-center {
    width: 40%;
    padding: 40px 0;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    z-index: 2;
    margin: 0 auto;
    transform: translateX(80px);
}

.concept-title {
    font-size: 1.4rem;
    font-weight: 500;
    letter-spacing: 0.2em;
    color: #333333;
    margin-bottom: 24px;
    position: relative;
    padding-bottom: 12px;
}

.concept-text {
    margin-bottom: 50px;
}

.concept-text p {
    font-size: 0.95rem;
    line-height: 2.2;
    letter-spacing: 0.1em;
    margin-bottom: 2em;
}

.concept-text p:last-child {
    margin-bottom: 0;
}

.btn-outline {
    display: inline-flex;
    align-items: center;
    gap: 16px;
    padding: 16px 36px;
    border: 1px solid #333333;
    border-radius: 50px;
    color: #333333;
    text-decoration: none;
    font-size: 0.95rem;
    letter-spacing: 0.1em;
    background-color: transparent;
    transition: all 0.3s ease;
}

.btn-outline:hover {
    background-color: #2b4c6f;
    color: #ffffff;
    border-color: #2b4c6f;
    transform: translateY(-2px);
}

.btn-outline:hover .arrow,
.btn-outline:hover .arrow-blue {
    transform: translateX(6px);
    color: #ffffff;
}

.concept-right {
    width: 28%;
}

.concept-right img {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
}

@media (max-width: 768px) {
    .concept-section {
        padding: 120px 0 40px;
    }

    .concept-inner {
        padding: 0 20px;
        display: flex;
        flex-wrap: wrap;
        align-items: flex-start;
        justify-content: space-between;
    }

    .concept-left {
        order: 1;
        width: 60%;
        min-height: auto;
        display: flex;
        align-items: flex-start;
        gap: calc(2vw + 4px);
        position: static;
        min-width: 0;
    }

    .concept-catch {
        font-size: 22px;
        line-height: 1.8;
        letter-spacing: 0.15em;
        writing-mode: vertical-rl;
        flex-shrink: 0;
    }

    .concept-catch span {
        display: block;
    }

    .concept-baby-img {
        position: static;
        width: 32vw;
        max-width: 160px;
        min-width: 95px;
        flex-shrink: 1;
    }

    .concept-baby-img img {
        width: 100%;
        height: auto;
        display: block;
        border-radius: 0;
    }

    .concept-right {
        order: 2;
        width: 35%;
        margin-top: 45px;
    }

    .concept-right img {
        width: 100%;
        height: auto;
        display: block;
        border-radius: 0;
    }

    .concept-center {
        order: 3;
        width: 100%;
        margin-top: 40px;
        padding: 0;
        align-items: flex-start;
        text-align: left;
        transform: translateX(60px);
    }

    .concept-title {
        font-size: 18.5px;
    }

    .concept-center > .btn-outline {
        position: relative;
        top: 10px;
    }

    .concept-text {
        width: 100%;
        margin-bottom: 30px;
    }

    .concept-text p {
        font-size: 0.88rem;
        line-height: 2.1;
        margin-bottom: 1.4em;
    }

    .btn-outline {
        width: auto;
        margin: 0;
        box-sizing: border-box;
        padding: 14px 28px;
        font-size: 0.85rem;
        justify-content: flex-start;
    }
}

.reasons-section {
    background-color: #ffffff;
    color: #333333;
    padding: 20px 0 120px;
}

.reasons-inner {
    max-width: 1160px;
    margin: 0 auto;
    padding: 0 40px;
}

.reasons-header {
    text-align: center;
    margin-bottom: 70px;
}

.reasons-lead {
    font-size: 0.92rem;
    line-height: 2.2;
    letter-spacing: 0.08em;
    color: #555555;
}

.reasons-pentagon {
    position: relative;
    width: min(100%, 1000px);
    height: 680px;
    margin: 0 auto 70px;
}

.pentagon-center {
    position: absolute;
    top: 50%;
    left: 50%;
    z-index: 3;
    width: 210px;
    height: 165px;
    transform: translate(-50%, -50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 7px;
    text-align: center;
    color: #1b355a;
    background: #ffffff;
    border: 1px solid rgba(27, 53, 90, 0.45);
    border-radius: 50%;
    box-shadow: 0 12px 30px rgba(27, 53, 90, 0.12);
}

.pentagon-center-content {
    position: absolute;
    top: 50%;
    left: 50%;
    z-index: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 7px;
    transform: translate(-50%, -50%);
    text-align: center;
    color: inherit;
    white-space: nowrap;
}

.pentagon-center-label {
    font-family: sans-serif;
    font-size: 0.62rem;
    font-weight: 700;
    letter-spacing: 0.28em;
}

.pentagon-center strong {
    font-size: 1.08rem;
    font-weight: 500;
    letter-spacing: 0.12em;
}

.pentagon-center small {
    font-size: 0.72rem;
    letter-spacing: 0.18em;
    color: #6c8095;
}

.reason-pentagon-card {
    position: absolute;
    z-index: 2;
    opacity: 0;
    width: 240px;
    min-height: 176px;
    padding: 32px 28px 26px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: #ffffff;
    text-decoration: none;
    background: linear-gradient(145deg, #1b355a, #2b4c6f);
    clip-path: polygon(50% 0, 100% 25%, 80% 100%, 20% 100%, 0 25%);
    filter: drop-shadow(0 12px 14px rgba(27, 53, 90, 0.18));
}

.reasons-pentagon.fade-in {
    opacity: 1;
    transition: none;
}

.reasons-pentagon.fade-in .reason-pentagon-card {
    transition: opacity 0.8s cubic-bezier(0.25, 1, 0.5, 1) var(--reveal-delay, 0s),
        transform 0.35s cubic-bezier(0.25, 1, 0.5, 1) 0s;
}

.reasons-pentagon.fade-in.is-visible .reason-pentagon-card {
    opacity: 1;
}

.reason-pentagon-card--top {
    top: 0;
    left: 50%;
    transform: translateX(-50%);
}

.reason-pentagon-card--right {
    top: 168px;
    right: 0;
}

.reason-pentagon-card--bottom-right {
    right: 8%;
    bottom: 0;
}

.reason-pentagon-card--bottom-left {
    bottom: 0;
    left: 8%;
}

.reason-pentagon-card--left {
    top: 168px;
    left: 0;
}

.reason-pentagon-number {
    margin-bottom: 8px;
    font-family: sans-serif;
    font-size: 0.65rem;
    letter-spacing: 0.2em;
    color: #b8d2e8;
}

.reason-pentagon-card h3 {
    max-width: 190px;
    font-size: 1rem;
    font-weight: 500;
    line-height: 1.55;
    letter-spacing: 0.08em;
}

.reason-pentagon-card p {
    margin-top: 8px;
    font-size: 0.76rem;
    line-height: 1.7;
    letter-spacing: 0.06em;
    color: #e3edf5;
}

@media (min-width: 769px) {
    .reasons-header {
        margin-bottom: 0;
    }

    .reasons-pentagon {
        width: min(100%, 1080px);
        height: auto;
        aspect-ratio: 10 / 6.5;
        top: -44px;
        margin-bottom: clamp(-154px, calc(214px - 32.5vw), -36px);
    }

    .reason-icons-arc {
        position: absolute;
        inset: 0;
        z-index: 0;
        display: block;
        width: 100%;
        height: 100%;
        overflow: visible;
        pointer-events: none;
    }

    .reason-icons-arc path {
        fill: none;
        stroke: rgba(27, 53, 90, 0.2);
        stroke-width: 1.1;
        stroke-linecap: round;
        vector-effect: non-scaling-stroke;
    }

    .reason-pentagon-card {
        top: auto;
        right: auto;
        bottom: auto;
        left: auto;
        width: 25%;
        height: auto;
        min-height: 0;
        padding: 0;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: flex-start;
        color: #1b355a;
        text-align: center;
        text-decoration: none;
        background: transparent;
        border: 0;
        clip-path: none;
        filter: none;
        transform: none;
    }

    .reason-pentagon-card::before {
        display: none;
    }

    .reason-pentagon-card--top {
        top: 20.15%;
        left: 38%;
        width: 24%;
        --item-accent: #315b80;
    }

    .reason-pentagon-card--right {
        top: 28%;
        left: 57.51%;
        --item-accent: #526f87;
    }

    .reason-pentagon-card--bottom-right {
        top: 45.15%;
        left: 73.5%;
        --item-accent: #607f93;
    }

    .reason-pentagon-card--bottom-left {
        top: 45.15%;
        left: 1.5%;
        --item-accent: #607f93;
    }

    .reason-pentagon-card--left {
        top: 28%;
        left: 17.49%;
        --item-accent: #526f87;
    }

    .reason-pentagon-icon {
        position: relative;
        z-index: 1;
        display: grid;
        place-items: center;
        width: clamp(56px, 6.8vw, 68px);
        aspect-ratio: 1;
        flex: 0 0 auto;
        margin-bottom: 12px;
        border: 1px solid rgba(27, 53, 90, 0.2);
        border-radius: 50%;
        background: #ffffff;
        box-shadow: 0 3px 9px rgba(27, 53, 90, 0.06);
        color: var(--item-accent, #315b80);
        transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
    }

    .reason-pentagon-icon svg {
        display: block;
        width: 25px;
        height: 25px;
        fill: none;
        stroke: currentColor;
        stroke-width: 1.5;
        stroke-linecap: round;
        stroke-linejoin: round;
    }

    .reason-pentagon-card-content {
        position: relative;
        width: 100%;
        display: flex;
        flex-direction: column;
        align-items: center;
        padding: 0 8px;
        text-align: center;
    }

    .reason-pentagon-number {
        position: static;
        z-index: auto;
        margin: 0 0 5px;
        color: var(--item-accent, #315b80);
        font-size: 0.7rem;
        font-weight: 700;
        line-height: 1;
        letter-spacing: 0.16em;
        transform: none;
    }

    .reason-pentagon-card h3 {
        max-width: none;
        margin: 0;
        color: #1b355a;
        font-size: clamp(0.88rem, 1.3vw, 1.05rem);
        font-weight: 500;
        line-height: 1.5;
        letter-spacing: 0.06em;
    }

    .reason-pentagon-card p {
        margin-top: 7px;
        color: #3e5264;
        font-size: clamp(0.76rem, 1.05vw, 0.86rem);
        line-height: 1.7;
        letter-spacing: 0.04em;
    }

    .reason-pentagon-card:hover {
        background: transparent;
        filter: none;
        transform: translateY(-4px);
    }

    .reason-pentagon-card:hover .reason-pentagon-icon {
        border-color: rgba(49, 91, 128, 0.5);
        box-shadow: 0 7px 16px rgba(27, 53, 90, 0.11);
        transform: scale(1.04);
    }

    .pentagon-center {
        top: 50%;
        left: 50%;
        z-index: 3;
        width: 19%;
        max-width: 200px;
        height: auto;
        aspect-ratio: 1.0515 / 1;
        padding: 0;
        transform: translateX(-50%);
        overflow: hidden;
        border: 0;
        border-radius: 0;
        background: linear-gradient(145deg, rgba(27, 53, 90, 0.78), rgba(43, 76, 111, 0.58));
        box-shadow: none;
        filter: drop-shadow(0 8px 10px rgba(27, 53, 90, 0.22));
        clip-path: polygon(50% 0, 100% 38.2%, 80.9% 100%, 19.1% 100%, 0 38.2%);
        color: #ffffff;
    }

    .pentagon-center-content {
        position: relative;
        top: auto;
        left: auto;
        z-index: 1;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 8px;
        width: 100%;
        height: 100%;
        padding: 14px;
        transform: translateY(5%);
        color: #ffffff;
        white-space: nowrap;
    }

    .pentagon-center-label {
        font-size: 0.7rem;
        letter-spacing: 0.24em;
    }

    .pentagon-center strong {
        font-size: clamp(0.9rem, 1.5vw, 1.12rem);
        letter-spacing: 0.08em;
    }

    .pentagon-center small {
        color: #b8d2e8;
        font-size: 0.78rem;
        letter-spacing: 0.16em;
    }
}

.reasons-cta {
    text-align: center;
}

.btn-white {
    display: inline-flex;
    align-items: center;
    gap: 16px;
    padding: 16px 36px;
    background-color: #ffffff;
    border: 1px solid #333333;
    border-radius: 50px;
    color: #333333;
    text-decoration: none;
    font-size: 0.95rem;
    letter-spacing: 0.1em;
    transition: all 0.3s ease;
}

.btn-white:hover {
    background-color: #2b4c6f;
    border-color: #2b4c6f;
    color: #ffffff;
    transform: translateY(-2px);
}

.btn-white:hover .arrow,
.btn-white:hover .arrow-blue {
    transform: translateX(6px);
    color: #ffffff;
}

@media (max-width: 768px) {
    .reasons-section {
        padding: 120px 0 60px;
    }

    .reasons-inner {
        padding: 0 36px;
    }

    .reasons-header {
        margin-bottom: 40px;
    }

    .reasons-lead {
        font-size: 0.9rem;
        line-height: 2;
        text-align: left;
    }

    .reasons-pentagon {
        width: 100%;
        height: auto;
        display: flex;
        flex-direction: column;
        gap: 0;
        margin-bottom: 50px;
    }

    .reason-icons-arc,
    .reason-pentagon-icon {
        display: none;
    }

    .pentagon-center {
        position: relative;
        top: auto;
        left: auto;
        width: 100%;
        height: 190px;
        min-height: 0;
        transform: none;
        align-self: center;
        margin-bottom: 12px;
        padding: 20px 24px;
        color: #ffffff;
        background: linear-gradient(135deg, rgba(0, 0, 0, 0.26), rgba(0, 0, 0, 0.12)),
            url('images/strength.jpg') center / cover no-repeat;
        border: none;
        border-radius: 0;
        box-shadow: none;
        clip-path: none;
        overflow: hidden;
        border-bottom: 2px solid #1b355a;
    }

    .pentagon-center::before {
        content: '';
        position: absolute;
        top: 50%;
        z-index: 0;
        width: min(160px, 70%);
        height: auto;
        aspect-ratio: 1.0515 / 1;
        transform: translate(-50%, -50%);
        left: 50%;
        background: linear-gradient(145deg, rgba(27, 53, 90, 0.78), rgba(43, 76, 111, 0.58));
        clip-path: polygon(50% 0, 100% 38.2%, 80.9% 100%, 19.1% 100%, 0 38.2%);
        filter: drop-shadow(0 8px 10px rgba(27, 53, 90, 0.22));
    }

    .pentagon-center-content {
        top: calc(50% + 7px);
        left: 50%;
        z-index: 1;
        color: #ffffff;
    }

    .pentagon-center small {
        color: #b8d2e8;
    }

    .pentagon-center strong {
        font-size: 0.98rem;
    }

    .reason-pentagon-card {
        position: relative;
        top: auto;
        right: auto;
        bottom: auto;
        left: auto;
        width: 100%;
        min-height: 0;
        padding: 20px 0;
        transform: none;
        display: block;
        text-align: left;
        background: transparent;
        border: none;
        border-bottom: 1px solid rgba(27, 53, 90, 0.18);
        border-radius: 0;
        clip-path: none;
        filter: none;
    }

    .reason-pentagon-card::before {
        display: none;
    }

    .reason-pentagon-card-content {
        position: relative;
        inset: auto;
        width: 100%;
        height: auto;
        display: grid;
        grid-template-columns: 42px minmax(0, 1fr);
        grid-template-rows: auto auto;
        column-gap: 14px;
        align-items: center;
        padding: 0;
        text-align: left;
        transform: none;
    }

    .reason-pentagon-card:last-child {
        border-bottom: none;
    }

    .reason-pentagon-number {
        position: relative;
        top: auto;
        left: auto;
        z-index: auto;
        grid-column: 1;
        grid-row: 1 / 3;
        width: 34px;
        height: 34px;
        display: flex;
        align-items: center;
        justify-content: center;
        align-self: start;
        margin: 2px 0 0;
        border: 1px solid #1b355a;
        border-radius: 0;
        background: #1b355a;
        color: #ffffff;
        font-size: 0.68rem;
        font-weight: 700;
        line-height: 1;
        letter-spacing: 0;
        text-align: center;
        padding: 0;
        transform: none;
    }

    .reason-pentagon-card h3 {
        grid-column: 2;
        max-width: none;
        font-size: 0.92rem;
        line-height: 1.45;
        color: #1b355a;
    }

    .reason-pentagon-card p {
        grid-column: 2;
        margin-top: 3px;
        font-size: 0.82rem;
        line-height: 1.5;
        color: #61758a;
    }

    .reasons-cta {
        transform: translateY(-24px);
    }

    .btn-white {
        width: auto;
        padding: 14px 36px;
        font-size: 0.88rem;
    }
}

.search-section {
    position: relative;
    height: 500vh;
    background-color: #0b0f14;
    color: #ffffff;
}

.search-sticky-container {
    position: sticky;
    top: 0;
    width: 100%;
    height: 100vh;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    box-sizing: border-box;
}

.search-bg-photo {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    z-index: 1;
}

.search-bg-photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.photo-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        180deg,
        rgba(0, 0, 0, 0.66) 0%,
        rgba(0, 0, 0, 0.64) 48%,
        rgba(0, 0, 0, 0.72) 100%
    );
}

.shape-overlay {
    position: absolute;
    top: 0;
    width: 100%;
    height: 100vh;
    background: linear-gradient(135deg, rgba(27, 53, 90, 0.85), rgba(123, 164, 199, 0.4));
    pointer-events: none;
}

.shape-left {
    left: 0;
    z-index: 2;
    clip-path: polygon(0 0, 100% 0, 0 22%);
}

.shape-right {
    left: 0;
    z-index: 3;
    clip-path: polygon(0 0, 100% 0, 100% 22%);
}

.search-inner {
    position: relative;
    z-index: 4;
    width: 100%;
    max-width: 1100px;
    padding: 0 40px;
    box-sizing: border-box;
    transform: translateY(40px);
}

.search-header {
    text-align: center;
    margin-bottom: 36px;
}

.search-lead {
    font-size: 1.05rem;
    line-height: 1.9;
    letter-spacing: 0.08em;
    color: #ffffff;
}

.search-title,
.search-lead,
.step-title,
.step-time,
.step-desc,
.step-list li {
    text-shadow: 0 1px 6px rgba(0, 0, 0, 0.72);
}

.search-interactive {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 70px;
}

.dial-container {
    position: relative;
    width: 210px;
    height: 210px;
    flex-shrink: 0;
}

.dial-wheel {
    position: relative;
    width: 100%;
    height: 100%;
    border-radius: 50%;

    transition: transform 0.1s ease-out;
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
    transform-style: preserve-3d;
}

.circle-border {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 1.5px solid rgba(255, 255, 255, 0.35);
    border-radius: 50%;
    box-sizing: border-box;
}

.wheel-dot {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 10px;
    height: 10px;
    margin-top: -5px;
    margin-left: -5px;
    background-color: #ffffff;
    border-radius: 50%;
    box-shadow: 0 0 8px rgba(255, 255, 255, 0.8);
}

.dot-1 {
    transform: rotate(0deg) translate(104px);
}

.dot-2 {
    transform: rotate(30deg) translate(104px);
}

.dot-3 {
    transform: rotate(60deg) translate(104px);
}

.dot-4 {
    transform: rotate(90deg) translate(104px);
}

.dot-5 {
    transform: rotate(120deg) translate(104px);
}

.dot-6 {
    transform: rotate(150deg) translate(104px);
}

.dot-7 {
    transform: rotate(180deg) translate(104px);
}

.fixed-num-display {
    position: absolute;
    top: 50%;
    right: -20px;
    transform: translateY(-50%);
    width: 90px;
    height: 80px;
    pointer-events: none;
}

.num-item {
    position: absolute;
    top: 0;
    left: 0;
    font-family: 'Zen Old Mincho', serif;
    font-size: 3.8rem;
    font-weight: 700;
    color: #ffffff;
    line-height: 1;
    opacity: 0;
    transform: translateY(15px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

.num-item.active {
    opacity: 1;
    transform: translateY(0);
}

.content-area {
    flex-grow: 1;
    min-height: 260px;
    position: relative;
}

.step-content {
    position: absolute;
    top: 50%;
    left: 0;
    width: 100%;
    transform: translateY(-40%);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.5s ease, transform 0.5s ease;
}

.step-content.active {
    opacity: 1;
    transform: translateY(-50%);
    pointer-events: auto;
}

.step-title {
    font-size: 1.65rem;
    font-weight: 500;
    line-height: 1.5;
    letter-spacing: 0.1em;
    margin-bottom: 16px;
}

.step-time {
    display: inline-block;
    font-size: 0.7em;
    font-weight: 400;
    letter-spacing: 0.04em;
    color: #e8eef5;
    white-space: nowrap;
}

.step-desc {
    font-size: 1.125rem;
    line-height: 1.95;
    color: #ffffff;
    margin-bottom: 20px;
}

.step-list {
    list-style: none;
    margin-bottom: 24px;
    padding-bottom: 16px;
}

.step-list li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 1.125rem;
    line-height: 2.05;
    color: #ffffff;
}

.step-list li::before {
    content: '';
    flex: 0 0 7px;
    width: 7px;
    height: 7px;
    margin-top: 0.72em;
    border-radius: 50%;
    background-color: currentColor;
}

@media (min-width: 769px) {
    .search-inner {
        max-width: 1150px;
        padding-right: 40px;
        padding-left: 40px;
    }

    .search-header {
        transform: translateY(-40px);
    }

    .search-header .search-title {
        margin-bottom: 28px;
    }

    .search-interactive {
        gap: 70px;
    }

    .search-lead {
        font-size: 0.92rem;
    }

    .step-desc {
        letter-spacing: 0.04em;
    }
}

@media (max-width: 768px) {
    .search-section {
        --mobile-header-offset: calc(62px + env(safe-area-inset-top));
        height: 400vh;
    }

    .search-sticky-container {
        position: sticky;
        top: 0;
        height: 100vh;
        height: 100svh;
        padding: 32px 0;
        box-sizing: border-box;
        display: flex;
        align-items: center;
    }

    .search-bg-photo,
    .shape-overlay {
        height: 100vh;
        height: 100svh;
    }

    .search-inner {
        padding: 0 20px;
        width: 100%;
        transform: translateY(calc(var(--mobile-header-offset) - 25px));
    }

    .search-header {
        margin-bottom: 10px;
        text-align: center;
        transform: translateY(30px);
    }

    .search-title {
        font-size: 1.25rem;
        padding-bottom: 24px;
        margin-bottom: 28px;
    }

    .reasons-lead-break {
        display: none;
    }

    .reasons-lead-final {
        white-space: nowrap;
    }

    .search-lead {
        font-size: 0.9rem;
        line-height: 2;
        text-align: left;
    }

    .search-lead-intro {
        display: none;
    }

    .search-lead-company {
        display: none;
    }

    .search-lead-company-break {
        display: none;
    }

    .search-interactive {
        flex-direction: column;
        align-items: center;
        gap: 12px;
        transform: translateY(30px);
    }

    .dial-container {
        width: 104px;
        height: 104px;
        margin: 8px auto;
    }

    .wheel-dot {
        width: 7px;
        height: 7px;
        margin-top: -3.5px;
        margin-left: -3.5px;
        box-shadow: 0 0 6px rgba(255, 255, 255, 0.75);
    }

    .dot-1 {
        transform: rotate(0deg) translate(51px);
    }

    .dot-2 {
        transform: rotate(30deg) translate(51px);
    }

    .dot-3 {
        transform: rotate(60deg) translate(51px);
    }

    .dot-4 {
        transform: rotate(90deg) translate(51px);
    }

    .dot-5 {
        transform: rotate(120deg) translate(51px);
    }

    .dot-6 {
        transform: rotate(150deg) translate(51px);
    }

    .dot-7 {
        transform: rotate(180deg) translate(51px);
    }

    .fixed-num-display {
        right: -13px;
        width: 56px;
        height: 42px;
    }

    .num-item {
        font-size: 1.7rem;
    }

    .content-area {
        width: 100%;
        height: 360px;
        min-height: 360px;
    }

    .step-content {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        transform: translateY(10px);
        opacity: 0;
        pointer-events: none;
        transition: opacity 0.4s ease, transform 0.4s ease;
    }

    .step-content.active {
        position: absolute;
        opacity: 1;
        transform: translateY(0);
        pointer-events: auto;
    }

    .step-title {
        font-size: 1.12rem;
        line-height: 1.4;
        margin-bottom: 7px;
    }

    .step-time {
        display: block;
        font-size: 0.7em;
        letter-spacing: 0.03em;
        white-space: normal;
        margin-top: 4px;
    }

    .step-time--mobile-block {
        margin-top: 4px;
    }

    .step-desc {
        font-size: 0.9rem;
        line-height: 2;
        margin-bottom: 12px;
    }

    .step-list {
        margin-bottom: 10px;
        padding-bottom: 8px;
    }

    .step-list li {
        gap: 8px;
        font-size: 0.9rem;
        line-height: 2;
    }

    .step-list li::before {
        flex-basis: 6px;
        width: 6px;
        height: 6px;
        margin-top: 0.82em;
    }

}

.seller-section {
    background-color: #ffffff;
    padding: 120px 0;
    color: #333333;
}

.seller-container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 40px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 60px;
}

.seller-image-wrapper {
    flex: 1;
    max-width: 400px;
    overflow: hidden;
}

.seller-image-wrapper img {
    width: 100%;
    height: auto;
    display: block;
}

.seller-content {
    flex: 1;
    text-align: center;
}

.seller-lead {
    font-size: 0.9rem;
    line-height: 2.2;
    letter-spacing: 0.08em;
    color: #444444;
    margin-bottom: 40px;
}

.seller-copy-sp {
    display: none;
}

@media (max-width: 768px) {
    .seller-section {
        padding: 80px 0;
    }

    .seller-container {
        flex-direction: column;
        padding: 0 32px;
        gap: 40px;
    }

    .seller-image-wrapper {
        max-width: 100%;
    }

    .seller-lead {
        font-size: 0.9rem;
        line-height: 2;
        text-align: left;
    }

    .seller-copy-pc {
        display: none;
    }

    .seller-copy-sp {
        display: inline;
    }
}

.knowledge-section {
    background-color: #556777;
    color: #ffffff;
    padding: 120px 0;
}

.knowledge-container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 40px;
}

.knowledge-header {
    text-align: center;
    margin-bottom: 60px;
}

.knowledge-lead {
    font-size: 0.9rem;
    line-height: 2;
    letter-spacing: 0.08em;
    color: #e2e8ee;
}

.home-knowledge-coming-soon {
    display: none;
}

.knowledge-section.is-coming-soon .knowledge-header {
    margin-bottom: 36px;
}

.knowledge-section.is-coming-soon .knowledge-lead,
.knowledge-section.is-coming-soon .knowledge-grid,
.knowledge-section.is-coming-soon .knowledge-btn-wrap {
    display: none;
}

.knowledge-section.is-coming-soon .home-knowledge-coming-soon {
    display: block;
    max-width: 960px;
    margin: 0 auto 64px;
    padding: 44px 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.24);
    border-bottom: 1px solid rgba(255, 255, 255, 0.24);
    text-align: center;
}

.home-knowledge-coming-soon-kicker {
    margin-bottom: 14px;
    color: #e2e8ee;
    font-family: sans-serif;
    font-size: 0.66rem;
    font-weight: 700;
    letter-spacing: 0.3em;
}

.home-knowledge-coming-soon-title {
    margin-bottom: 16px;
    font-family: 'Zen Old Mincho', serif;
    font-size: clamp(1.3rem, 2.2vw, 1.7rem);
    font-weight: 400;
    letter-spacing: 0.12em;
}

.home-knowledge-coming-soon-copy {
    color: #e2e8ee;
    font-size: 0.9rem;
    line-height: 2;
    letter-spacing: 0.06em;
}

.knowledge-grid {
    display: flex;
    justify-content: space-between;
    gap: 48px;
    margin-bottom: 48px;
}

.knowledge-card {
    flex: 1;
    display: block;
    text-decoration: none;
    color: inherit;
    transition: transform 0.22s ease, opacity 0.22s ease;
}

.knowledge-card.fade-in {
    transition: opacity 2.8s cubic-bezier(0.25, 1, 0.5, 1), transform 0.22s ease;
}

.knowledge-card.is-visible {
    transition-delay: 0s !important;
}

.knowledge-card:hover {
    transform: translateY(-6px);
    transition: transform 0.35s cubic-bezier(0.25, 1, 0.5, 1), opacity 0.35s ease;
}

.slits-frame {
    position: relative;
}

.knowledge-card .slits-frame {
    aspect-ratio: 4 / 3;
    margin-bottom: 20px;
}

.knowledge-card .slits-frame img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    clip-path: polygon(20px 0, 100% 0, 100% calc(100% - 20px), calc(100% - 20px) 100%, 0 100%, 0 20px);
    transition: filter 0.22s ease;

}

.blue-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(27, 53, 90, 0.6);
    z-index: 2;
    opacity: 0;
    transition: opacity 0.22s ease;

    pointer-events: none;
    clip-path: polygon(20px 0, 100% 0, 100% calc(100% - 20px), calc(100% - 20px) 100%, 0 100%, 0 20px);
}

.knowledge-card:hover .blue-overlay {
    opacity: 1;
    transition: opacity 0.35s ease;

}

.knowledge-card:hover .slits-frame img {
    filter: brightness(80%);
    transition: filter 0.35s ease;
}

.slits-frame::before,
.slits-frame::after {
    content: '';
    position: absolute;
    width: 48px;
    height: 1.5px;
    background-color: #ffffff;
    z-index: 5;
    pointer-events: none;
}

.slits-frame::before {
    top: 10px;
    left: 10px;
    transform: translate(-50%, -50%) rotate(-45deg);
}

.slits-frame::after {
    bottom: 10px;
    right: 10px;
    transform: translate(50%, 50%) rotate(-45deg);
}

.x-timeline-box {
    flex: 1.3;
    position: relative;
}

.x-timeline-card {
    width: 100%;
    background-color: #d0d7de;
    clip-path: polygon(20px 0, 100% 0, 100% calc(100% - 20px), calc(100% - 20px) 100%, 0 100%, 0 20px);
}

.x-timeline-inner {
    width: 100%;
    height: 340px;
    padding: 24px;
    box-sizing: border-box;
    overflow-y: auto;
}

.x-timeline-inner .twitter-tweet {
    width: 100% !important;
    max-width: 550px !important;
    margin: 0 auto 20px !important;
}

.x-timeline-inner .twitter-tweet:last-of-type {
    margin-bottom: 0 !important;
}

.x-timeline-box::before,
.x-timeline-box::after {
    width: 58px;
}

.card-title {
    font-size: 0.88rem;
    font-weight: 400;
    line-height: 1.8;
    letter-spacing: 0.05em;
    color: #ffffff;
}

.knowledge-btn-wrap {
    text-align: center;
    margin-bottom: 80px;
}

.btn-white-round {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 12px 40px;
    background-color: #ffffff;
    border: 1px solid transparent;
    border-radius: 50px;
    color: #1b355a;
    text-decoration: none;
    font-size: 0.88rem;
    letter-spacing: 0.08em;
    transition: all 0.3s ease;
}

.btn-white-round:hover {
    background-color: #2b4c6f;
    border-color: #2b4c6f;
    color: #ffffff;
    transform: translateY(-2px);
}

.btn-white-round:hover .arrow,
.btn-white-round:hover .arrow-blue {
    transform: translateX(6px);
    color: #ffffff;
}

.knowledge-divider {
    border: none;
    height: 1px;
    background-color: rgba(255, 255, 255, 0.3);
    margin-bottom: 80px;
}

.x-section {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.x-info {
    flex: 1;
    padding-left: 60px;
}

.x-logo-title {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 24px;
}

.x-icon {
    font-size: 2.4rem;
}

.x-account-name {
    font-size: 1.1rem;
    letter-spacing: 0.1em;
}

.x-line {
    width: 100%;
    max-width: 260px;
    height: 1px;
    background-color: rgba(255, 255, 255, 0.4);
    margin-bottom: 28px;
}

.x-desc {
    font-size: 0.9rem;
    line-height: 2;
    letter-spacing: 0.08em;
    margin-bottom: 36px;
    color: #e2e8ee;
}

.x-timeline-box {
    flex: 1.3;
    position: relative;
    margin-right: 60px;
}

@media (max-width: 768px) {
    .knowledge-section {
        padding: 80px 0;
    }

    .knowledge-container {
        padding: 0 32px;
    }

    .knowledge-grid {
        flex-direction: column;
        gap: 40px;
        align-items: center;
    }

    .knowledge-card {
        width: 85%;
        max-width: 300px;
    }

    .knowledge-divider {
        margin-bottom: 60px;
    }

    .knowledge-lead {
        text-align: left;
    }

    .knowledge-section.is-coming-soon .knowledge-header {
        margin-bottom: 28px;
    }

    .knowledge-section.is-coming-soon .home-knowledge-coming-soon {
        margin-bottom: 48px;
        padding: 32px 10px;
    }

    .home-knowledge-coming-soon-kicker {
        margin-bottom: 12px;
        font-size: 0.6rem;
    }

    .home-knowledge-coming-soon-title {
        margin-bottom: 12px;
        font-size: 1.18rem;
        letter-spacing: 0.08em;
    }

    .home-knowledge-coming-soon-copy {
        font-size: 0.88rem;
        line-height: 2;
        letter-spacing: 0.04em;
    }

    .x-section {
        flex-direction: column;
        gap: 40px;
    }

    .x-info {
        text-align: center;
        padding-left: 0;
    }

    .x-logo-title {
        justify-content: center;
    }

    .x-line {
        margin: 0 auto 24px;
    }

    .x-timeline-box {
        width: 100%;
        margin-right: 0;
    }
}

.ac-section {
    display: flex;
    width: 100%;
    height: 440px;
    background-color: #ffffff;
    overflow: hidden;
}

.ac-about {
    flex: 1;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.ac-about-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center top;
    transform: translateY(-24px) scale(1.15);
    transform-origin: center center;
    z-index: 1;
}

.ac-about-bg[alt="LORANT RESEARCH"] {
    transform: translateY(-24px) rotate(-0.5deg) scale(1.15);
}

.ac-overlay-svg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 2;
    pointer-events: none;
}

.ac-about-content {
    position: relative;
    z-index: 3;
    text-align: center;
    padding: 0 40px;
    margin-top: 80px;
}

.ac-about-content .ac-lead {
    margin-bottom: 24px;
}

.ac-contact {
    height: 100%;
    aspect-ratio: 1 / 1;
    flex-shrink: 0;
    background-color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 30px 40px;
    box-sizing: border-box;
    box-shadow: -5px 0 20px rgba(0, 0, 0, 0.04);
}

.ac-contact-inner {
    text-align: center;
    max-width: 420px;
}

.ac-sub-title {
    font-family: 'Zen Old Mincho', serif;
    font-size: 0.95rem;
    font-weight: 500;
    letter-spacing: 0.12em;
    color: #1b355a;
    margin-bottom: 18px;
}

.ac-lead {
    font-size: 0.85rem;
    line-height: 1.9;
    letter-spacing: 0.08em;
    color: #444444;
    margin-bottom: 24px;
}

.btn-outline-sm {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 13px 36px;
    border: 1px solid #333333;
    border-radius: 50px;
    color: #333333;
    text-decoration: none;
    font-size: 0.85rem;
    letter-spacing: 0.08em;
    background-color: #ffffff;
    transition: all 0.3s ease;
}

.btn-outline-sm:hover {
    background-color: #2b4c6f;
    border-color: #2b4c6f;
    color: #ffffff;
    transform: translateY(-2px);
}

.btn-outline-sm:hover .arrow,
.btn-outline-sm:hover .arrow-blue {
    transform: translateX(6px);
    color: #ffffff;
}

@media (hover: none) and (pointer: coarse) {
    .btn-contact.is-touch-pressed,
    .btn-contact:active {
        background-color: #2b4c6f;
        border-color: #2b4c6f;
        color: #ffffff;
        transform: translateY(-2px);
        box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    }

    .floating-contact.is-touch-pressed,
    .floating-contact:active {
        background-color: #2b4c6f;
        border-color: rgba(255, 255, 255, 0.65);
        color: #ffffff;
        transform: translateY(-3px);
        box-shadow: 0 12px 28px rgba(11, 20, 32, 0.24);
    }

    .btn-outline.is-touch-pressed,
    .btn-outline:active,
    .btn-white.is-touch-pressed,
    .btn-white:active,
    .btn-outline-sm.is-touch-pressed,
    .btn-outline-sm:active {
        background-color: #2b4c6f;
        border-color: #2b4c6f;
        color: #ffffff;
        transform: translateY(-2px);
    }

    .btn-contact.is-touch-pressed .arrow,
    .btn-contact.is-touch-pressed .arrow-blue,
    .btn-outline.is-touch-pressed .arrow,
    .btn-outline.is-touch-pressed .arrow-blue,
    .btn-white.is-touch-pressed .arrow,
    .btn-white.is-touch-pressed .arrow-blue,
    .btn-outline-sm.is-touch-pressed .arrow,
    .btn-outline-sm.is-touch-pressed .arrow-blue,
    .btn-contact:active .arrow,
    .btn-contact:active .arrow-blue,
    .btn-outline:active .arrow,
    .btn-outline:active .arrow-blue,
    .btn-white:active .arrow,
    .btn-white:active .arrow-blue,
    .btn-outline-sm:active .arrow,
    .btn-outline-sm:active .arrow-blue {
        transform: translateX(6px);
        color: #ffffff;
    }

    .floating-contact.is-touch-pressed .arrow,
    .floating-contact:active .arrow {
        transform: translateX(5px);
    }
}

@media (max-width: 900px) {
    .ac-section {
        flex-direction: column;
        height: auto;
    }

    .ac-about {
        width: 100%;
        min-height: 480px;
    }

    .ac-overlay-svg text {
        font-size: 44px;
    }

    .ac-contact {
        width: 100%;
        height: auto;
        aspect-ratio: auto;
        padding: 80px 24px;
    }
}

@media (max-width: 768px) {
    .ac-overlay-svg text {
        font-size: 38px;
        letter-spacing: 4px;
    }

    .ac-about-content {
        transform: translateY(12px);
    }
}

.footer {
    background-color: #bebfc1;
    color: #ffffff;
    padding: 80px 0 30px;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 60px;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
}

.footer-left {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.footer-logo {
    margin-bottom: 80px;
}

.footer-logo img {
    height: 150px;
    width: auto;
    display: block;
}

.copyright {
    font-size: 0.85rem;
    letter-spacing: 0.08em;
    color: #ffffff;
}

.footer-nav {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 20px;
    text-align: right;
    transform: translateY(-20px);
}

.footer-nav a {
    color: #ffffff;
    text-decoration: none;
    font-size: 0.8rem;
    letter-spacing: 0.12em;
    display: inline-flex;
    align-items: center;
    justify-content: flex-end;
    gap: 24px;
    transition: opacity 0.3s ease;
}

.footer-nav a:hover {
    opacity: 0.7;
}

.footer-nav .nav-jp {
    font-family: 'Zen Old Mincho', serif;
    font-weight: 400;
}

.footer-nav .nav-en {
    font-family: 'Cinzel', serif;
    font-weight: 400;
    min-width: 120px;
    text-align: left;
}

.footer-nav .divider {
    font-size: 0.8rem;
    opacity: 0.7;
    font-weight: 300;
}

@media (min-width: 769px) {
    .footer-nav {
        transform: translate(20px, -20px);
    }

    .footer-nav .nav-jp {
        flex: 0 0 180px;
        min-width: 180px;
        text-align: right;
    }

    .footer-nav .nav-en {
        flex: 0 0 180px;
        min-width: 180px;
    }
}

@media (max-width: 768px) {

    .sub-mv-caption {
        left: 24px;
    }

    .footer {
        padding: 60px 0 30px;
    }

    .footer-container {
        display: flex;
        flex-direction: column;
        align-items: center;

        padding: 0 20px;
        gap: 28px;

    }

    .footer-left {
        display: contents;
    }

    .footer-logo {
        order: 1;

        margin-bottom: 0;
    }

    .footer-right {
        order: 2;

        width: 100%;
    }

    .copyright {
        order: 3;
        font-size: 0.75rem;
        text-align: center;
        margin-top: 20px;
        line-height: 1.6;
    }

    .copyright-rest {
        display: block;
    }

    .footer-logo img {
        height: 100px;

    }

    .footer-nav {
        transform: translateX(-10px);

        width: 100%;
    }

    .footer-nav a {
        display: flex;
        justify-content: center;

        width: 100%;
        max-width: 330px;
        margin-inline: auto;
        gap: 6px;

    }

    .footer-nav .nav-jp {
        flex: 0 0 60%;

        text-align: right;
        white-space: nowrap;

    }

    .footer-nav .divider {
        flex: 0 0 auto;

    }

    .footer-nav .nav-en {
        flex: 0 0 32%;

        text-align: left;

        min-width: 0;

        white-space: nowrap;
        font-size: 0.72rem;
        letter-spacing: 0.05em;
    }
}

.floating-contact {
    position: fixed;
    right: 30px;
    top: 104px;
    z-index: 80;
    display: flex;
    align-items: center;
    gap: 16px;
    min-width: 220px;
    padding: 13px 18px 13px 20px;
    border: 1px solid rgba(255, 255, 255, 0.38);
    border-radius: 2px;
    background: rgba(27, 53, 90, 0.96);
    box-shadow: 0 10px 24px rgba(11, 20, 32, 0.18);
    color: #ffffff;
    text-decoration: none;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    transition: background-color 0.3s ease, border-color 0.3s ease, transform 0.3s ease, box-shadow 0.3s ease;
}

.floating-contact-copy {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.floating-contact-kicker {
    font-family: sans-serif;
    font-size: 0.56rem;
    font-weight: 700;
    letter-spacing: 0.24em;
    line-height: 1.2;
    opacity: 0.72;
}

.floating-contact-label {
    font-size: 0.9rem;
    letter-spacing: 0.12em;
    line-height: 1.4;
}

.floating-contact .arrow {
    margin-left: auto;
    color: #ffffff;
    font-size: 1.25rem;
    transition: transform 0.3s ease;
}

.floating-contact:hover {
    border-color: rgba(255, 255, 255, 0.65);
    background: #2b4c6f;
    box-shadow: 0 12px 28px rgba(11, 20, 32, 0.24);
    transform: translateY(-3px);
}

.floating-contact:hover .arrow {
    transform: translateX(5px);
}

@media (min-width: 769px) {
    .main-visual .mv-action {
        display: none;
    }

    .floating-contact--hero {
        position: absolute;
        top: auto;
        right: 30px;
        bottom: 80px;
        padding-top: 16px;
        transition: background-color 0.3s ease, border-color 0.3s ease, color 0.3s ease,
            transform 0.3s ease, box-shadow 0.3s ease;
    }

    .floating-contact--hero .arrow {
        transition: transform 0.3s ease, color 0.3s ease;
    }

    .floating-contact--hero.is-over-hero {
        border-color: transparent;
        background: rgba(255, 255, 255, 0.85);
        color: #333333;
    }

    .floating-contact--hero.is-over-hero .floating-contact-kicker {
        color: #1b355a;
        opacity: 1;
    }

    .floating-contact--hero.is-over-hero .arrow {
        color: #333333;
    }

    .floating-contact--hero.is-over-hero:hover {
        border-color: #2b4c6f;
        background: #2b4c6f;
        color: #ffffff;
    }

    .floating-contact--hero.is-over-hero:hover .arrow {
        color: #ffffff;
    }

    .floating-contact--hero.is-over-hero:hover .floating-contact-kicker {
        color: #ffffff;
    }

    .floating-contact--hero.is-fixed {
        position: fixed;
        top: 104px;
        right: 30px;
        bottom: auto;
    }
}

.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 46px;
    height: 46px;
    border-radius: 50%;
    background-color: rgba(11, 20, 32, 0.7);
    border: none;

    color: #ffffff;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
    z-index: 99;
    opacity: 0;
    visibility: hidden;
    transform: translateY(15px);
    transition: all 0.3s ease;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

.back-to-top.is-visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background-color: rgba(11, 20, 32, 0.95);
    transform: translateY(-3px);
}

@media (max-width: 768px) {
    .floating-contact {
        display: none;
    }

    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 40px;
        height: 40px;
        font-size: 0.85rem;
    }
}